Edger.



R. J. TOWER.

v EDGER. APPLICATION FILED APR. 27,1908.

Patented Se t. 22, 1914-.

3 SHEETS-SHEET 1.

Wifhgsses j/zren far mid fi ay. JYZm/e/ 30 m 9' Murry. Yflffomk R. J. TOWER.

EDGER, 11991101111011 IILBDAPR. 27, 190B.

Patented Sept. 22, 1914;

3 SHEETS-SHEET 2.

mmmlw R. J. TOWER.

EDGEE.

APPLIGATION FILED APR. 27, 1908.

Patented Sept. 22, 1914.

3 SHEETS-SHEET 3.

. omran STATES PATENT OFFICE,

RAY J. TOWER, OF GREEN VILLE, MICHIGA N, ASSIGNOR 0F ONE-HALF TQTHE GORDON HOLLOW BLAST'GRATE COMPANY, OF GREENVILLE, MICHIGAN, A CORPORATION OF MICHIGAN.

arena.

To all whom it may concern A Be it known that I, RAY J. 'Towan, a cit1- zen of the United States of America, residing at Greem'ille, in the county of Montcalm and State of Michigan, have invented certain new and useful Improvements in Edgers, of which the following is a specification, reference being had therein to, the accompanying drawings.

The invention relates to edgers and con-v sists in .certain features of construction, with particular reference to the, means employed for shifting the saw or saws upon the arbor, for quickly removing such saw or saws at any time, and for adjusting the movable guide, these .objects being attained by means of edgers in which a'stationary and one or' mone adi'ustable saws are mounted upon the arbor, I eadjustable saw being shiftable during operations by levers actuated from the forward end of the bed. It is important that this adjusting mechanism should be accurate in its operation and freefrom any lost motion-or flexing of the parts which 0... r su t in va iat n in th work. t is a so necessary for the saws to be remorable, and it is highly desirable that this detachment should-be accomplished as easily and expeditiously as possible. This result I, have attained by the following construction:

A is the bed or frame upon which is mounted the work supporting rolls B.

C is the arbor and D and D are driven feed rolls upon opposite sides thereof.

E is the saw mounted in fixed position u on theiarbor, and F and F are the shifta le saws which are slidable along the arbor on a spline G.

One end ofthe arbor C is mounted in fixed bearings H and H uponthefframe Specification of Letters Patent. Applicationfiled April 27, 1908. Serial No. 429,342.

Patented Sept. 22, 1914.

detached to permit of engaging or the To per-.

engaging the saws from thearbor. mit of quickly removing this hearing 1 preferably construct the same of a bracket J having the legs J and J thereof arranged to engage recesses between adjoining sections K and K of the frame. Set screws L are also provided which engage threaded apertures in-thelegs J and J and bear against the lower frame member K. Thus when these set screws are tightened the bracket J will be clamped against the shoulder upon the upper frame member K" so as to be held rigidly in positiongbut at any time it may be quickly removed by merely loosening the set screws which be ing on the top of the bracket are easily ac- ,cessible.

The shiftable saws F and F ;by means of the lovers M M [to which the saws are secured. The latter construction is illustrated inFigs. 1 and 3 in which 0 are arms bifurcated to embrace the collar 0 and engage the groove therein. P is a slidable bearing to which the arm 0 is secured, said bearing being sleeved upon a guide rod P on the frame. Q is an arm secured to the inner end of each of the levers M and M and engages a recess Q, in the slidable bearing P. Thus whenever the lever M is shifted the bearing 1 will he slid along the guide P and the arm 0 moving therewith will shift the saw upon the arbor. It is, however, necessary that the arm 0 should be detachable from the collar to permit of the removal of the saw.

. simple construction in which the arm 0 is formed of a separate member from the hearing 1?,1and has at its rear end a ortion O which is laterallyengageable wit a socket I on the member P. The member .0 is preferably of, wedge shape section and drops in to the socket P from the top, so that it may be readily engaged or disengaged. To secure these members from accidental dis 75 are adjusted Y which are centrally pivoted to a cross girt N on the frame engagement a set screw P is' arranged at one side of the socket P which may be tightened to clamp the member T0 facilitatethe cutting of the lumber to exact size, a scale or index is arranged adjacent to the, handle ends of the lever M. This index is formed by a notched segment R which has a series of numerals or other indications R by which the workmen may set the levers for any desired size of work.

It is obvious that the accuracy of the work depends on the accuracy of the relative positlon of this segment, the fulcrum for the levers and the mounting of the work guide uponv the frame. I have, however, avoided the necessity of exact workmanship in the construction and mounting of these parts by providing an adjustment for the segments R relative to the cross girt R of the frame upon which they are mounted, thereby, permitting of exactly positioning the segments after the completion of the mechanical structure. As shown, the cross girt R? is formed of upper and lower parallel bars upon which are mounted the segments B respectively for the levers M M.

thesesegments is secured to the girt by clamping bolts S which 'engageslotsfi in the segments and are preferably provided with taperedheads for firmly holding the parts when tightened. Thus by loosening the bolts, S the segments may be accurately positioned and by then clamping the bolts they will be held in this position. A further advantage of havin the segments adjustable is to enable the fumber to be edged or ripped scant, exact or plump, as may be desired. Instead of having the indexes at the front endot' the machine, they may be over or near the saws, if preferred.

At one side of the frame A is arranged 4 an adjustable edge guide for the work. This consists of a pair of parallel rock arms T and T, which are pivotally secured to segments-U and U which are mounted upon cross girts of the frame A. V is a guide bar which is pivotally connected to the rock Each of.

arms T and T, and is swungltheieby'into' "different positions of adjustment, all of which will be parallel with th saws. One

of the segments U" is fprovdjed with a notched flange U? wi th'which th' arm 3T may be engaged to hold the guic e in dif- [erent positions of adjustment. Q 5

As the operation of this type of machine is Well understood, I deem itfnnnecessary to further describe the same.

However, 1! de-; sire to emphasize the fact that the construe having a recess therein below the top por-.

tion thereof, whereby said top portion overlies said recess, a detachable arm for coupling said member to said saw, a'lever, and an arm on said lever having a part posi tioned in said recess whereby the lever is pivotally connected to-said member.

2. The combination with an arbor and asawshiftable thereon provided at one side thereof with athrust collar,xof a" ide parallel to said arbor, a. member s idable on said guide having a wedge-she ed'socket opening on one side of the gui e member, said shdable member having a terminal re- 'cess with the top Wall of the member overlying said. recess, an arm having a wedgeshaped portion for engaging said socket and bifurcated at its opposite end to engage the thrust collar on saidsaw, a lever, and an ar on said lever loosely engagin i id recess of the slidable member.

In testimony whereof I affix my signature in presence of two witnesses.

. RAY J. TOWER. Witnesses:

CRAIG WALKER, .ELVA S. Fares. 

